Quote:
Originally Posted by sldwaa 
Dysan911 - I replaced my fan when the light flashed and that fixed my issue. Yours is more complicated (obviously) - I poked around the internet and FixYa has this listed to also check for your problem - thought I would throw it out there for one more item before you make a costly change out.
"Blinking codes are never good news:
4 times, Diagnosis: Vertical deflection stopped. Possible causes: +- 15V is not supplied. (D board), IC8003 is faulty. (A board) Symptoms of the problem: TV has entered standby state after horizontal raster, Vertical deflection pulse is stopped, Power line is shorted or power supply is stopped."
Hope this helps and good luck.

Dysan911 - I replaced my fan when the light flashed and that fixed my issue. Yours is more complicated (obviously) - I poked around the internet and FixYa has this listed to also check for your problem - thought I would throw it out there for one more item before you make a costly change out.
"Blinking codes are never good news:
4 times, Diagnosis: Vertical deflection stopped. Possible causes: +- 15V is not supplied. (D board), IC8003 is faulty. (A board) Symptoms of the problem: TV has entered standby state after horizontal raster, Vertical deflection pulse is stopped, Power line is shorted or power supply is stopped."
Hope this helps and good luck.
Alright here's the deli-ma!. I already replaced this TV but my Sony is in mint condition and I really hate to toss it out if it's just some cheap board but I certainly don't want to throw parts at it and find out the hard way that it was a $900 fix. So what I've got so far is.
It could be the ASU/DSU Board and before you run out and buy one off ebay you have to make sure it's the right Series to match your Optical block. Not sure about that.
I replaced the big fan in the back with a 120mm PC Fan and wired it in. Could there be the slightest issue that for some reason it needs the actual original OEM SOny Fan in there to work right? Or is a fan a fan and as long as it's spinning up then that's resolved and it has to be something else? Which brings me back to the DSU/ASU.
My Sony does have the newer Optical block. Maybe I can part this TV out.. Its just so hard for me to give up on it and throw it in the dumpster.
Seems the internet is FULL of the 4 red blinks symptoms and everyone of them resolved it simply by cleaning the fans.


























